Astronomy 101 Chapter 3
chapter 3 Eclipse
Terms in this set (32)
An eclipse of the Sun in which the Moon is too distant to cover the Sun completely, so that a ring of sunlight is seen around the Moon at mid-eclipse.
The point in its orbit where a satellite or the Moon is farthest from the Earth.
The cutting off of part or all the light from one celestial object by another.
The track of the tip of the Moon's shadow along the Earth's surface during a total or annular solar eclipse.
The interval between successive passages of the Sun through the same node of the Moon's orbit.
first quarter moon
The phase of the Moon that occurs when the Moon is 90° east of the Sun.
A phase of the Moon during which its full daylight hemisphere can be seen from Earth
line of nodes
The line where the plane of the Earth's orbit intersects the plane of the Moon's orbit.
An eclipse of the Moon by the Earth; a passage of the Moon through the Earth's shadow.
The appearance of the illuminated area of the Moon as seen from Earth.
The phase of the Moon when the dark hemisphere of the Moon faces the Earth.
partial lunar eclipse
A lunar eclipse in which the Moon does not appear completely covered.
partial solar eclipse
A solar eclipse in which the Sun does not appear completely covered.
The portion of a shadow in which only part of the light source is covered by an opaque body
A lunar eclipse in which the Moon passes only through the Earth's penumbra.
The point in its orbit where a satellite or the Moon is nearest the Earth.
A particular cycle of similar eclipses that recur about every 18 years.
The period of the Moon's revolution about the Earth with respect to the stars.
Hot, faintly glowing gases seen around the Sun during a total solar eclipse; the uppermost regions of the solar atmosphere.
An eclipse of the Sun by the Moon; a passage of the Earth through the Moon's shadow.
The rotation of a body with a period equal to its orbital period; also called 1-to-1 spin-orbit coupling.
The period of revolution of the Moon with respect to the Sun; the length of one cycle of lunar phases. Also called the lunar month.
third quarter moon
The phase of the Moon that occurs when the Moon is 90° west of the Sun.
total lunar eclipse
A lunar eclipse during which the Moon is completely immersed in the Earth's umbra.
total solar eclipse
A solar eclipse during which the Sun is completely hidden by the Moon.
totality (lunar eclipse)
The period during a total lunar eclipse when the Moon is entirely within the Earth's umbra.
totality (solar eclipse)
The period during a total solar eclipse when the disk of the Sun is completely hidden.
The central, completely dark portion of a shadow.
waning crescent moon
The phase of the Moon that occurs between third quarter and new moon.
waning gibbous moon
The phase of the Moon that occurs between full moon and third quarter.
waxing crescent moon
The phase of the Moon that occurs between new moon and first quarter.
waxing gibbous moon
The phase of the Moon that occurs between first quarter and full moon.